Donna Rebecca Stefansic

Title: Donna Rebecca Stefansic: Innovator in Shell Manufacturing Technology

Introduction

Donna Rebecca Stefansic is a notable inventor based in North Canton, OH (US). She has made significant contributions to the field of shell manufacturing technology, holding 2 patents that showcase her innovative spirit and technical expertise.

Latest Patents

Her latest patents include "Shell press and method for forming a shell" and "Shell press and method of manufacturing a shell." The first patent describes an apparatus and method for forming a shell with a central panel and a chuck wall. This invention employs a biasing member to control the movement of the inner pressure sleeve and a die core, which has an outer diameter equal to or greater than that of the punch core. This technology can be utilized in both single action and double action presses. The second patent focuses on forming a shell with a central panel connected to a chuck wall, featuring a z-fold located between the two. This method is characterized by forming the z-fold during the downstroke of the press while supporting it during the upstroke, all within a triple action die contained in a shell press.

Career Highlights

Donna is currently employed at Stolle Machinery Company, LLC, where she continues to develop innovative solutions in shell manufacturing. Her work has significantly impacted the efficiency and effectiveness of shell production processes.

Collaborations

One of her notable collaborators is Robert Dean Turnbull, with whom she has worked closely on various projects.

Conclusion

Donna Rebecca Stefansic is a pioneering inventor whose contributions to shell manufacturing technology have advanced the industry. Her patents reflect her commitment to innovation and excellence in engineering.